01/10/2012

Metav hall 16, stand F28

Kellenberger launches an extremely accurate B-axis generation with a concept that is unique for universal cylindrical grinding machines. The full-fledged NC-axis with pretensioned hydrostatic guide and a direct drive increases the potential of universal cylindrical grinding. This hydrostatic B-axis adds a feature with a promising future to the model series Kel-Varia and Kel-Vera.

The pretensioned hydrostatics are the basis for higher accuracy and better surface quality. Steps of 0.0001 degrees can be traveled with no problem, and give the machine its “measuring machine” standard of precision. The positioning accuracy of less than one arc second allows positioning of grinding wheels that is comparable to the linear X and Z axes.

The high rigidity means that complete processing jobs can be optimized, and productivity raised. The high degree of positioning accuracy improves dimensional accuracy, especially in cases where dressing can-not be carried out after swiveling, such as when using e.g. CBN or diamond grinding wheels.

The direct drive is wear-free and allows high travel speeds. Tool change times are radically reduced, which also minimizes non-productive time. The drive system is even open to future application possibilities such as e.g. in the area of simultaneous processing. The new concept allows work to be done even without clamping, and is open to new working strategy options.

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